M41ST85WMH6E - English Editing Encyclopedia Entry

Product Overview

Category

The M41ST85WMH6E belongs to the category of Real-Time Clocks (RTCs).

Use

This product is primarily used for timekeeping and timestamping applications in various electronic devices.

Characteristics

• The M41ST85WMH6E offers accurate timekeeping with low power consumption.
• It has a wide operating voltage range, making it suitable for different electronic systems.
• This RTC provides non-volatile storage for time and date information, ensuring data integrity even during power loss.
• The device incorporates an integrated crystal, eliminating the need for an external oscillator.

Package

The M41ST85WMH6E comes in a small surface-mount package, allowing for easy integration into electronic circuit boards.

Essence

The essence of the M41ST85WMH6E lies in its ability to provide reliable and precise timekeeping functionality to electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C
• Memory: 64 bytes of Non-Volatile RAM (NVRAM)
• Oscillator Frequency: 32.768kHz

Detailed Pin Configuration

The M41ST85WMH6E features the following pin configuration:

| Pin Name | Description | |----------|-------------| | VCC | Power supply input | | GND | Ground connection | | SDA | Serial Data Line for I2C communication | | SCL | Serial Clock Line for I2C communication | | X1 | Crystal oscillator input | | X2 | Crystal oscillator output |

Functional Features

• Accurate timekeeping with low power consumption
• Automatic leap year compensation
• Battery backup for continuous operation during power loss
• Alarm and timer functions
• Programmable square wave output
• Power-on reset circuitry

Advantages and Disadvantages

Advantages

• High accuracy timekeeping
• Low power consumption
• Integrated crystal oscillator reduces external component count
• Non-volatile storage ensures data integrity during power loss

Disadvantages

• Limited memory capacity (64 bytes)
• Requires an external battery for backup power

Working Principles

The M41ST85WMH6E utilizes a crystal oscillator to generate a precise 32.768kHz clock signal. This clock signal is used to keep track of time and date information. The device also incorporates non-volatile RAM to store this information, ensuring that it is retained even when the power supply is disconnected.

Detailed Application Field Plans

The M41ST85WMH6E finds applications in various electronic devices, including but not limited to: - Smartphones and tablets - Wearable devices - Industrial automation systems - Automotive electronics - Medical equipment

Detailed and Complete Alternative Models

• DS3231 - Real-Time Clock Module
• PCF8563 - I2C Real-Time Clock
• MCP7940N - Battery-Backed Real-Time Clock

These alternative models offer similar functionality to the M41ST85WMH6E and can be considered as alternatives based on specific requirements.

In conclusion, the M41ST85WMH6E is a reliable Real-Time Clock suitable for a wide range of electronic applications. Its accurate timekeeping, low power consumption, and integrated crystal oscillator make it a popular choice among designers. However, its limited memory capacity and requirement for an external battery backup are important considerations.